linux-renesas-soc.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
To: linux-pm@vger.kernel.org,
	Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH v2 1/2] thermal: rcar_thermal: Remove temperature bound
Date: Fri, 17 Jan 2020 17:05:02 +0100	[thread overview]
Message-ID: <20200117160502.GC1074550@oden.dyn.berto.se> (raw)
In-Reply-To: <20200117152242.3804288-2-niklas.soderlund+renesas@ragnatech.se>

On 2020-01-17 16:22:41 +0100, Niklas Söderlund wrote:
> The hardware manual states that the operation of the sensor is not
> guaranteed outside the range of -45°C to 125°C, not that the readings
> are invalid. Remove the bound check and try to deliver temperature
> readings even if we are outside the guaranteed operation range.
> 
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
> * Changes since v2
> - Preserver the guaranteed operating range in a comment.
> ---
>  drivers/thermal/rcar_thermal.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
> index d0873de718da9218..f9c1fa10e6a2b3fd 100644
> --- a/drivers/thermal/rcar_thermal.c
> +++ b/drivers/thermal/rcar_thermal.c
> @@ -275,12 +275,7 @@ static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv,
>  		tmp = MCELSIUS((priv->ctemp * 5) - 60);
>  	mutex_unlock(&priv->lock);
>  
> -	if ((tmp < MCELSIUS(-45)) || (tmp > MCELSIUS(125))) {
> -		struct device *dev = rcar_priv_to_dev(priv);
> -
> -		dev_err(dev, "it couldn't measure temperature correctly\n");
> -		return -EIO;
> -	}
> +	/* Guaranteed operating ragne is -45C to 125C. */

s/ragne/range/

A bit embarrassing, sometime my hands can't keep up... Will send v3.

>  
>  	*temp = tmp;
>  
> -- 
> 2.24.1
> 

-- 
Regards,
Niklas Söderlund

  reply	other threads:[~2020-01-17 16:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-17 15:22 [PATCH v2 0/2] thermal: rcar_{gen3_}thermal: Remove temperature Niklas Söderlund
2020-01-17 15:22 ` [PATCH v2 1/2] thermal: rcar_thermal: Remove temperature bound Niklas Söderlund
2020-01-17 16:05   ` Niklas Söderlund [this message]
2020-01-17 15:22 ` [PATCH v2 2/2] thermal: rcar_gen3_thermal: " Niklas Söderlund

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200117160502.GC1074550@oden.dyn.berto.se \
    --to=niklas.soderlund+renesas@ragnatech.se \
    --cc=linux-pm@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --cc=wsa+renesas@sang-engineering.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).